抄録
The functionality of a pulse timing discriminator, which is commonly required in optical communication systems and artificial neuromorphic engineering, was implemented into chalcogenide phase-change materials. GeSbTe (GST) and GeCuTe (GCT), which exhibit opposite refractive index behavior in their respective crystalline and amorphous phases, were employed. A GST/GCT double layer enabled the order of arrival of two counter-propagating femtosecond pulses to be encoded as a difference in the degree of amorphization of the GCT layer, i.e., either a brighter or darker contrast of the amorphized area with respect to the crystalline background. Nonthermal ultrafast amorphization contributed to a picosecond time resolution in the discrimination of the pulse arrival order.
本文言語 | English |
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ページ(範囲) | 26825-26831 |
ページ数 | 7 |
ジャーナル | Optics Express |
巻 | 25 |
号 | 22 |
DOI | |
出版ステータス | Published - 2017 10 30 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics